As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DCA/BHM - FLT 5786 - DURING POST-FLIGHT INSPECTION, CREW FOUND SEVERAL EMERGENCY AISLE LIGHTS WOULD NOT ILLUMINATE. MAINTENANCE INSPECTED THE LIGHTS. ALL LIGHTS OPERATED NORMAL, COULD NOT DUPLICATE THE DISCREPANCY. AIRCRAFT WAS RETURNED TO SERVICE. (X)